<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            /* 完成了样式效果 */
            margin: 0;
            padding: 0;
        }
    </style>
</head>

<body>
    <div class="box">首页结构</div>

    <div class="box">创建了主题内容</div>
    <script>
        console.log('完成了js');
    </script>
</body>

</html>